Sandburg, C. (1959). Abraham Lincoln: The prairie years and the war years. Dell Publishing Co.
Chicago Style (17. basım) AtıfSandburg, Carl. Abraham Lincoln: The Prairie Years and the War Years. New York: Dell Publishing Co, 1959.
MLA (9th ed.) AtıfSandburg, Carl. Abraham Lincoln: The Prairie Years and the War Years. Dell Publishing Co, 1959.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..